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Analog Devices Inc./Maxim Integrated MAX6193AESA+T
- Part No.:
- MAX6193AESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6193AESA+T.pdf
- Description:
- IC VREF SERIES 0.07% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,593
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Product details
Overview
MAX6193AESA+T from Maxim Integrated is a precision, micropower, low-dropout series voltage reference delivering 3.000V output with ±2mV initial accuracy, 5ppm/°C max temperature coefficient, and 35µA max quiescent current - designed for high-stability analog signal chains in battery-powered instrumentation and precision ADC/DAC biasing.
For engineers reviewing the MAX6193AESA+T datasheet, MAX6193AESA+T pinout, MAX6193AESA+T application, or MAX6193AESA+T equivalent, key selection criteria include its 100mV dropout at 500µA load, 0.14µV/µA load regulation, stability with up to 2.2nF capacitive loads, and guaranteed performance over -40°C to +85°C.
Technical Context
The MAX6193AESA+T employs a curvature-corrected bandgap core with laser-trimmed thin-film resistors to achieve <5ppm/°C temperature coefficient and ±2mV (0.067%) initial accuracy. It operates as a series-mode reference, sourcing or sinking up to ±500µA while maintaining regulation.
Internally compensated for fast settling (100µs to 0.1%), it exhibits minimal supply current variation (≤2µA/V) across input voltage and remains stable without external capacitance - though optional 2.2nF output caps improve transient response in dynamic load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±2mV (±0.067%) - tightly specified for 12-bit to 16-bit converter reference rails |
| Temp Coefficient | ≤5ppm/°C - ensures ≤150µV drift over -40°C to +85°C ambient range |
| Quiescent Current | ≤35µA - enables multi-year operation on coin-cell batteries in portable meters |
| Dropout Voltage | 100mV at 500µA load - supports regulation from 3.1V input in 3.3V systems |
| Load Regulation | 0.14µV/µA - contributes ≤70µV error across full ±500µA load swing |
| Line Regulation | 20µV/V - adds ≤200µV error over 3.1V–12.6V input range |
| Noise (0.1–10Hz) | 150µVP-P - suitable for high-resolution DC measurement front-ends |
Pinout & Package
MAX6193AESA+T is housed in an 8-pin SO (Small Outline) package, RoHS-compliant and rated for -40°C to +85°C operation. Pin 1 is OUT, Pin 2 is IN, Pin 4 is GND; Pins 1, 3, 5, 7, and 8 are No Connect (N.C.).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 7, 8 | N.C. | No internal connection - must be left floating or tied to GND per layout best practice |
| 2 | IN | Supply input terminal - accepts 3.2V to 12.6V; requires local decoupling for PSR optimization |
| 4 | GND | Analog ground reference - must connect to clean system ground plane with low-impedance path |
| 6 | OUT | Precision 3.000V reference output - capable of sourcing/sinking ±500µA with <100mV dropout |
Key Features
| Feature | Design Value |
|---|---|
| Curvature-corrected bandgap | Enables ≤5ppm/°C TC without external compensation components |
| Laser-trimmed thin-film resistors | Guarantees ±2mV initial accuracy without post-package calibration |
| Capacitive-load stability | Operates stably with 0–2.2nF output capacitance - eliminates mandatory external cap |
| Low dropout at full load | 100mV dropout at 500µA allows use in 3.3V systems with minimal headroom |
| Supply current immunity | Only 0.8µA/V variation over input range - simplifies power budgeting in variable-VIN designs |
Applications
| Hand-Held Instruments | Analog-to-Digital Converters |
|---|---|
Use Scenario: Portable multimeters and handheld data loggers requiring long battery life and stable reference over temperature. IC Role / Device Role / Timing Role: Primary voltage reference for 16-bit SAR ADCs and precision op-amp bias networks. Use Value: ±2mV initial accuracy and ≤5ppm/°C TC ensure <0.01% total unadjusted error across operating range. |
Use Scenario: High-resolution industrial ADC modules where reference drift dominates system INL error. IC Role / Device Role / Timing Role: Buffered reference source for ADS1256/ADS131M04-family delta-sigma converters. Use Value: 0.14µV/µA load regulation minimizes code-dependent offset shifts during multiplexed channel sampling. |
| Industrial Process Control | Precision 3V/5V Systems |
Use Scenario: 4–20mA transmitter circuits needing ratiometric accuracy against loop-supply variations. IC Role / Device Role / Timing Role: Stable excitation reference for RTD/thermistor bridges and DAC-controlled current sources. Use Value: 20µV/V line regulation limits reference error to <200µV over 3.1–12.6V supply range. |
Use Scenario: Low-power microcontroller-based sensor nodes powered from regulated 3.3V rails. IC Role / Device Role / Timing Role: Reference for internal ADC and external precision comparators in always-on monitoring. Use Value: 35µA max supply current extends battery life beyond 10 years in 10µA average-current designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3030AIDBZR | 3.0V output, ±1.5mV initial accuracy, 50ppm/°C max TC, 50µA supply current | Higher TC and supply current; less suitable for wide-temp battery operation | Preferred where lower cost outweighs TC and quiescent current penalties |
| ADR3430ARJZ-R7 | 3.0V output, ±2mV initial accuracy, 10ppm/°C max TC, 45µA supply current | Looser TC spec and higher IQ; requires larger input headroom (150mV dropout) | Valid alternative when board space permits SOT-23-5 and TC margin >10ppm/°C is acceptable |
Compared with REF3030AIDBZR and ADR3430ARJZ-R7, the MAX6193AESA+T delivers superior temperature stability (5ppm/°C vs. ≥10ppm/°C), lower quiescent current (35µA vs. ≥45µA), and tighter initial tolerance under identical test conditions - making it optimal for high-accuracy, ultra-low-power portable instrumentation.
Availability
MAX6193AESA+T is available at Aetrix Electronics and suitable for hand-held instruments, analog-to-digital converters, and industrial process control systems requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6193AESA+T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) designs precision analog and mixed-signal ICs for demanding industrial, medical, and instrumentation applications.
The MAX6190–MAX6195/MAX6198 family was engineered specifically for micropower, low-dropout voltage references where sub-5ppm/°C stability and <35µA supply current are critical - targeting battery-operated precision measurement systems.
FAQ
What is the maximum load current supported by the MAX6193AESA+T while maintaining regulation?
The MAX6193AESA+T guarantees regulation while sourcing or sinking up to ±500µA. At 500µA load, dropout voltage is specified at 100mV - meaning the input must be ≥3.1V to maintain 3.000V output within tolerance. Performance remains stable with capacitive loads up to 2.2nF, and no external capacitor is required for basic operation.
Does the MAX6193AESA+T require an output capacitor for stability?
No, the MAX6193AESA+T is internally compensated and stable with 0nF to 2.2nF output capacitance. An external capacitor is optional and only recommended to improve transient response in applications with rapidly changing load currents - such as multiplexed sensor interfaces or burst-mode data acquisition systems using the MAX6193AESA+T.
What is the temperature coefficient specification for the MAX6193AESA+T, and how is it measured?
The MAX6193AESA+T has a maximum temperature coefficient of 5ppm/°C, measured using the "box method": the peak-to-peak output voltage change over the full -40°C to +85°C range is divided by the temperature span. This yields a worst-case drift of ±150µV across the operating range, directly impacting absolute accuracy in precision measurement circuits using the MAX6193AESA+T.
Can the MAX6193AESA+T be used in a 3.3V system with tight input headroom?
Yes - the MAX6193AESA+T achieves 100mV dropout at 500µA load, enabling reliable operation from a nominal 3.3V rail even at end-of-life battery voltage (~3.1V). Its supply voltage range starts at (VOUT + 0.2V) = 3.2V, and line regulation is specified at 20µV/V, ensuring minimal output shift across expected rail variation in the MAX6193AESA+T's operating envelope.
How does the MAX6193AESA+T compare to shunt voltage references in terms of power efficiency?
Unlike shunt references that draw constant current through a series resistor, the MAX6193AESA+T draws only 35µA quiescent current - independent of load - and supplies load current directly from VIN. This eliminates wasted bias current, reduces thermal stress, and extends battery life significantly in intermittent-use applications where the MAX6193AESA+T serves as the primary reference.
MAX6193AESA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 500 µA
- Tolerance:
- ±0.07%
- Temperature Coefficient:
- 5ppm/°C
- Noise - 0.1Hz to 10Hz:
- 75µVp-p
- Noise - 10Hz to 10kHz:
- 150µVrms
- Voltage - Input:
- 3.2V ~ 12.6V
- Current - Supply:
- 35µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6193AESA+T FAQ
1.How can I place an order for MAX6193AESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6193AESA+T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX6193AESA+T reliable?
The price and inventory of MAX6193AESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6193AESA+T is usually 5 days.
3.What payment methods are accepted for MAX6193AESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6193AESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6193AESA+T?
MAX6193AESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6193AESA+T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX6193AESA+T?
For technical support, including MAX6193AESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6193AESA+T requirements.
6.How does Aetrix verify that MAX6193AESA+T is sourced from the original manufacturer or authorized distributors?
All MAX6193AESA+T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX6193AESA+T meets industry standards.
7.What is the process for return or replacement of MAX6193AESA+T?
All MAX6193AESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6193AESA+T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX6193AESA+T part is unused and in its original packaging.
Return procedure for MAX6193AESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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